I left the cooler stock and utilized the 09' cap, flap, and L.E.D. tail light. I know there has been some discussion on the coolers but the way I looked at it was, I did not change any of the geometry between the rear skid and the cooler. The measurements are still the same. I did make my bumper a bit longer however, if you take a straight edge from the rear skid to the bumper, I actually have more room with the BDX kit. I may be way off base but it didn't look like it was going to be an issue, and I figured if I was going to do something to get into the cooler it would happen either way and I was probably going to have bigger problems than just the cooler.
My 2 cents.